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authorRafael J. Wysocki <rjw@sisk.pl>2010-03-06 21:28:37 +0100
committerRafael J. Wysocki <rjw@sisk.pl>2010-03-06 21:28:37 +0100
commitd690b2cd222afc75320b9b8e9da7df02e9e630ca (patch)
tree41b7f13c7176bc74d7836a7ec585a5a456302ea9 /include/linux/pm_runtime.h
parent87d1b3e60b55ef65f10054ccc319e5d67cf010e9 (diff)
PM: Provide generic subsystem-level callbacks
There are subsystems whose power management callbacks only need to invoke the callbacks provided by device drivers. Still, their system sleep PM callbacks should play well with the runtime PM callbacks, so that devices suspended at run time can be left in that state for a system sleep transition. Provide a set of generic PM callbacks for such subsystems and define convenience macros for populating dev_pm_ops structures. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'include/linux/pm_runtime.h')
-rw-r--r--include/linux/pm_runtime.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 7d773aac531..b776db73724 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -62,6 +62,11 @@ static inline void device_set_run_wake(struct device *dev, bool enable)
dev->power.run_wake = enable;
}
+static inline bool pm_runtime_suspended(struct device *dev)
+{
+ return dev->power.runtime_status == RPM_SUSPENDED;
+}
+
#else /* !CONFIG_PM_RUNTIME */
static inline int pm_runtime_idle(struct device *dev) { return -ENOSYS; }
@@ -89,6 +94,7 @@ static inline void pm_runtime_get_noresume(struct device *dev) {}
static inline void pm_runtime_put_noidle(struct device *dev) {}
static inline bool device_run_wake(struct device *dev) { return false; }
static inline void device_set_run_wake(struct device *dev, bool enable) {}
+static inline bool pm_runtime_suspended(struct device *dev) { return false; }
#endif /* !CONFIG_PM_RUNTIME */